2109.3034=3.14r^2

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Solution for 2109.3034=3.14r^2 equation: 


Simplifying
2109.3034 = 3.14r2

Solving
2109.3034 = 3.14r2

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '-3.14r2' to each side of the equation.
2109.3034 + -3.14r2 = 3.14r2 + -3.14r2

Combine like terms: 3.14r2 + -3.14r2 = 0.00
2109.3034 + -3.14r2 = 0.00

Add '-2109.3034' to each side of the equation.
2109.3034 + -2109.3034 + -3.14r2 = 0.00 + -2109.3034

Combine like terms: 2109.3034 + -2109.3034 = 0.0000
0.0000 + -3.14r2 = 0.00 + -2109.3034
-3.14r2 = 0.00 + -2109.3034

Combine like terms: 0.00 + -2109.3034 = -2109.3034
-3.14r2 = -2109.3034

Divide each side by '-3.14'.
r2 = 671.7526752

Simplifying
r2 = 671.7526752

Take the square root of each side:
r = {-25.918191974, 25.918191974}

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